Pendulum-scale.



L. JAENICHEN. y PENDULUM SCALE.

APPLICATION FILED FEB.26, 1914. v

1 1 1 6,59() Patented Nov. 10, 1914.

5 SHEBTSSH BET L. JAENIGHEN.

PENDULUM SCALE. A P PLIG1TION II LED FEB.26, 1914.

Patented Nov. 10,1914.

5 SHEETS-SHEET 2.

WITNE88E8:

INVENTOR L. JAENIOHEN. PENDULUM SCALE.

APPLICATION FILED P313126, 1914.

Patented Nov. 10,1914.

5 SHEETSSHEET 4.

J 0 4 4 A: a 4| 5. n w W v, w H 0! 9 2 INVENTOR WITH-5.88551 L.JAENICHBN. PENDULUM SCALE.

APPLIGATION FILED 1113.26, 1914.

Patented Nov. 10, 1914.

5 SHEETS-SHEET 5.

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WITNESSES U i D STATES PATENT ornicEJ I LoUIs-fJnnmcHEN, or person,MICHIGAN, nssIsNon TO srannann-comrnmme I 'sc'A'LE COMPANY, LIMITED, FDETROIT,, MICHIGAN, .A LIMITED PARTNERSHIP "or MICHIGAN.

To all whom it may concern Be it known that I, L'onfs JAnnicnnn, acitizen of the United States, and a resident of Detroit, in the countyof lVayne and State of Michigan, have invented a new and ImprovedPendulum-Scale, of which the following is a-specification.

L This invention relates to scales in which the weight and value of thearticle on the platform is indicated by fi u-res on a drum, and in whichthe stress of the load is resisted by a pendulum, and its object is toprovide a connection between the weighing levers, pendulum and. weightindicator, whereby the indicator is caused to move equal distances forequal increments in load on the platform. I

This invention consists, in combination with the scale levers andpendulum, of an antifriction connection between them, of a weight.indicator, a novel equalizing link pivoted ,at one end and connected tothe indicator at its free end, a segment connected to the indicator andmounted on the axis'of the pendulum, and a flexible "connectorbetween'the equalizing link'and said segment. i

In the accompanying drawings, Figure l is an elevationof a scaleembodying this present invention. Fig. 2 is a similar view on a largerscale with the side of the base a broken away. Fig. 3 is a plan :of thebase and scale levers. Fig. 4: is an elevation of the mechanism in thelower end of the pedestal on a larger scale. Fig. 5 is a section of thepedestal on the line 5-5 of-Fig. 6, on a larger scale, the mechanismwithin the pedestal being shown in plan. Fig. 6

is afront elevation of the connecting inech-' anism betweenthe scalelevers, pendulum and weight indicator, the front of the pedestal and onependulum bearing being broken away. Fig. 7 is a section showing aportion of the .connectionlbetween the main lever and pendulum. Fig. 8is a section of the pivot of the pendulum. Fig. 9 is a detail of theconnection between the main lever and the dash pot. Fig. '10 is anelevation of a-modified form of connection between themain' lever,weight indicator and pendulum. Fig. 11 is a section on line 1111 of Fig.1Q.

Similar reference characters refer to like parts throughout the severalviews.

. PENQDULU M-SCA'LE.

Patented Nov. 10,1914. Application filed February 26, 1914. Serial 110.821,156. q f i The scale shown in the drawings isv very .similaringeneral appearance to many scales now. on the market, and has a base 1,

pedestal 2, case 3 for the weight indicator,

and platform 4. The usual indicating drum supporting spider 7 within thebase 1,'which spider may be a substantially oval ring, as

shownin Fig.

'. The main lever 9 has knife-edgesIO rest 'ing in the bearings 11carried by a bar 12 extending across the base and supported thereby.The'nmin lever has also the knife edges 14: which support the rearbearings15 I of the spider, and the knife-edges 16 on which ban thelinks 17 which receive and carry the lever 19. v

The secondary lever has knife edges 21 at its front end on which restthe front bearings 22 of the spider 7-. The rear end of the secondarylever is in the form of an arm. 23

provided with a conical pivot 24 on which rests a post 25 having a pivot26 at its upper end that rests'in a cup 27 mounted on the his postreceives'the upward thrust. 'of the front end of-the secondar lever andvfor the base.

swings on its pivot to a'ccommo ate endwise movement of the pivot 24.

The rear end of the main lever is also in ife-edges 18 of the secondaryit .85 the form of an arm 29, provided with a downwardly extendingconical pivot 30, I that bears 1n a cup 31 carried by the stirrup 32 atthe lower end of the pitman 33. g I

A rigid bar 34 extends around within the front of :the base, as shown inFigs. 2 and 3,

and carries the twobearings 35 which sup port-the two knife-edges 36 ofthe link 37-. By having two bearings, the link is prevented fr'omswinging laterally. The rear connecting to the indicator rod 5 bymeansof a pivot pin 39, and the other arm 40- being provided with a conicalpivot42 that I;

engages the stirru the flexible metallic ribbon 44 that connects to andrests against the segmentffi, as w 43 on the lower end of- .lbo

' sists of a weight L9 on a rod 59 carried by an" a end-of the link isbifurcatedone arm 38 57 which prevent endwise movementof the knife-edge48. a

- The connection between the knife-edges 54 and the pitman' 33, is the.following. See Fig. 7. The pitman terminates in a socket fig having acap 61 and an adjustable plug 62, which has a-hard center 63 providedwith .4 conical depression to. receive the sharp end 64' of the pin 65.A forked yoke 66 carries this pin and also the bearings 67 that engagethe knife-edges 54. Anal? 68 may beemployed toadjust the pin 65, whilethe cap 69 may protect the bearings and prevent endwise movement on theknife-edges. A pin 70 may extend through the upper end of the pin 65 toprevent disengagement.

In order to guide the upper end of the pin 65 a link 73 is employed. Athin steel plate 74 extends from each side of the socket and theseplates have horizontal edges 7 5 in line with the point of the pin 65,and vertical edges 76 that meet these horizontal edges. The link 73 isformed with transverse edges 77, as shown in Figs. 5 and 7, that meetthe edges 75 and 76 on a line with this point of. the pin 65. Thisconstruction avoids all but the minimum of friction.

A bracket 80 projects from the right side of the pedestal and supports ablock 81 to which a plate. 82 is secured. This plate has horizontaledges 83. on which the link 73 rests, which link has horizontaltransverse edges 84 thatengage the outside face of the plate 82 alongsubstantiallythe line of the edges 83 of the plate 82. By reason of thisconstruction, friction is substantially eliminated, while the upper endof the com ression member between the pitman an the pendulum is causedto travel a predetermined path. v

On a plate 86 of the base (Fig. 4) is mounted a bearing87 for thetrunnion 88 of the dash-pot 89 of any desired construction. The pistonrod 90 may connect to the itman 33 by means of a cross bar 92 extendmgbetween the sides of the pitman. A head 93 may be secured to the pistonrod and may be connected to the cross bar by means of a small pin 94. Bysuitably proportionequal increments of load placed onthe plating thepitman 33, arm 53, the compression member between them, the pendulum,the arm 52 and segment 45, and obtaining a long link 37 the rod 5 willbe caused to move through practically even distances for form.

In the construction shown in Figs. 10

11, the rear end 29 of the lever connects to the stirrup 32 as before,but the pitman 100 connects at its upper end directly to the pivot 101on the bifurcated arm 102. The curved member 103 can no longer be asegment but must be in the form of a cam on which the connecting tape 44winds as befrom the base and provided with inwardly.

extending arms, a knife-edge pivot resting on the arms, ,a plurality ofarms mounted on the knife-edge, a'pendulum connected to one of saidarms, a pivot mounted on a second arm, a pitman connected to one end ofthe main lever to receive the stress communicated by the load, acompression member ex a load sustaining lever pivoted thereon, a

pitman extending upward from the rear end of said lever, a pendulum anda support therefor, an arm connected to the pendulum, a compressionmember having pivotal connection withthe' arm and the upper end of thepitman, means to guide the upper end of said pitman, a segmentvconnectedto the pendulum, an indicator actuating rod, 'and a flexible connectorbetween said segment and said rod.

3..In a scale, the cpmbination of a base, a load sustaining levermounted thereon, a pitman extending upward from the rear end of saidlever, a pendulum and a support therefor, an arm extending from saidpendulum, a compression member having pivotal connection with said armand pitman, means for controlling the path of the point of contactbetween the compression member and pitman, a se ment connected to saidpendulum, a meta tape connected thereto, an upright indicator operatingrod, and means to, connect the lower ends of the tape and rod andcontrol their movements.

4. In a scale, the combination of a base, a load sustaining levermounted thereon, a pitman extending upward from the rear end of saidlever, a pendulum and support therefor, an arm extending from saidpendulum, a compression member having pivotal connection with said armand pitman, means for controlling the path of the point of con-- tactbetween the compression member and pitman, a segment connected to saidpendulum, a metal'tape connected thereto, an upright indicator-operatingrod, and a" link pivoted at the front end of the base and connecting tothe lowerends of the tape and rod. yt

5. In a scale, the combination of a base, a load sustaining leverpivoted thereon, a pitman extending upward from the rear end of thelever, a pendulum and a support therefor, an arm connected to thependulum, a compression member havingpivotal connection with the arm andthe ripper end of the pitman, means to guide the upper end of thepitman, a segmentconnected to the pendulum, an indicator actuating rod,a link pivoted at one end at the front end of the base and at the rearend to said rod, and a flexible connector between the link and thesegment.

6. In a scale, the combination of a base, main and secondary leverspivotally mounted thereon, a pedestal extending upward from the base andprovided with inwardly extending arms, a knife-edge pivot resting on thearms, a plurality of arms mounted on the knife-edge, a pendulumconnected to one of said arms, a pivot mounted on a sec; ond arm, apitman connected to one end of the main lever to receive the stresscommu nicated by the load, a compression member extending between theupper end of the pitman and the pivot on said second arm, means to guidethe point of connection between the pitman and the compression member, asegment connected to the third arm,

a flexible tape attached to the segment, a

link pivoted at the,front end of the platform and having its rearendconnected to said tape, and an indicator operating rod connected to saidrear end of the link.

7. In a scale, the combination of a base, a load sustaining leverpivoted thereon, a pedestal extending upward from the base, pivotbearings mounted thereon, a pendulum mounted on the bearings, an armconnected to the pendulum, a pitman extending upward from the rear endof the lever, a compression member having pivotal connection with thearm and the upper end of the pitman, a guiding link pivotally connectedto the pedestai and to the upper end of the pitman, a segment connectedto the penduum, an'indicator actuating rod extending vertically adjacentthe segment, a guiding link pivoted at one end at the front of thebaseand at its rear end to said rod, and a flexible connector betweenthe link segment. I

'8. In a scale, the combination of a base, a load sustaining lever and aload resisting pendulum, operative connections between the lever andpendulum, a segment connected to the pendulum, an indicator actuatingrod extending vertically adjacent the segment, a guiding link pivoted atthe front end of the base and at its rear end to said the lever andpendulum,- a segment connected to the pendulum, an indicator actuatingrod, a guiding link pivoted at the front end of the base and at its rearend to said rod, and a flexible connector between the link and thesegment.

1.1. In a scale, the combination of a base, a load receiving membermounted thereon,

and the a load resisting pendulum, means connecting the load receivingmember and the pendulum, an'indicator actuating rod, a guiding linkpivoted at one end to the base and at the other end to the rod, andconnecting means between the link and pendulum.

12. In a scale, the combination of a base, a load-sustaining lever and aload-resisting pendulum, operative connections between the pendulum andlever, an indicator-actuating rod, a segment connected to thev pendulum,a flexible connector in engagement with the segment, and means wherebythe free end of the flexible connector may be linked to theindicator-actuating rod.

In testimony whereof, I have signed this application in the presence of'twosubscril ing witnesses.

LOUIS JAENICHEN.

Witnesses EDWARD N. PAcnLsnN, L. M. Seasons.

